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baherus [9]
3 years ago
12

Give an example of change that includes more than one change​

Chemistry
1 answer:
bogdanovich [222]3 years ago
6 0

Answer:

candle.

Explanation:

Candle has more than one change chemical and physical.

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What is true about empathy?
uysha [10]
I would go with B. Not everyone can learn this skill.
8 0
3 years ago
If one of the reactants in a reaction is Na2O, what is known about the products?
const2013 [10]

D. The products will have at least 2 Na atoms and 1 O atom.

<h3>Further explanation</h3>

If we refer to the law of mass conservation, which states that

<em>In a closed system, the masses before and after the reaction are the same </em>

then the number of atoms in the reactance will be the same as the number of atoms in the product

In this problem it is known that Na₂O is one of the reactants so that the product of Na atoms and O atoms will at least equal the number of atoms in the bond, namely 2 Na and 1 O

Like an example of this Na₂O reaction:

Na₂O + H₂O ⇒ 2 NaOH

Na : left =2, right = 2

O : left=2, right = 2

4 0
3 years ago
Read 2 more answers
The reaction 2KClO3(s) --&gt; 2KCl(s) + 3O2(g) is a(n)
julia-pushkina [17]

Answer:

decomposition reaction.

Explanation:

It is a decomposition reaction as potassium chlorate compound breaks to form potassium chloride and oxygen. This reaction requires heat as source of energy to break down the compound so it is endothermic in nature.

8 0
3 years ago
Which is a property of barium (Ba)?
pogonyaev

Answer:

a it rarely reach with other elements

6 0
2 years ago
1 what do you understand by the term isotopes 2 why do I should talk of an element process identical chemical properties 3 name
Bad White [126]

Answer:

Isotopes of an element have same number of protons but different number of neutrons. Which means isotopes of an element have same atomic number but different mass number.

The chemical property of an element is determined by the number of electrons. And as all the isotopes have same number of electrons, they have same chemical properties.

Thus as isotopes of an element have same atomic number , they have same number of electrons and protons. As they have different mass number, the number of neutrons will be different. Hydrogen has three isotopes , ^1_1\textrm{H}, ^2_1\textrm{H} and ^3_1\textrm{H}. Thus ^1_1\textrm{H} has no neutron.

5 0
2 years ago
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